Jupiter retrograde 1991

2 periods, 90 days inside the year — 24.6% of 1991. Station times below are UTC and computed to the minute.

120 days · retreats 10.05° · crosses the year boundary

30 November → 30 March 1991 in Leo

Stations retrograde 30 Nov 1990, 03:42 UTC at 13.73° Leo
Stations direct 30 Mar 1991, 13:29 UTC at 3.67° Leo
Shadow opens 4 Sep 1990 (87 days before)
Shadow closes 27 Jun 1991 (89 days after)
Full window including shadows 296 days

Read against Leo, and see that sign’s horoscope for the period.

41 days · retreats 2.57° · crosses the year boundary

30 December → 9 February 1992 in Virgo

Stations retrograde 30 Dec 1991, 18:53 UTC at 14.7° Virgo
Stations direct 9 Feb 1992, 23:59 UTC at 12.13° Virgo
Shadow opens 19 Nov 1991 (41 days before)

Read against Virgo, and see that sign’s horoscope for the period.

Computed from the actual motion

The nearest Jupiter retrogrades either side of 1991

Previous

1990 Ended 9 February 1991 after 72 days, moving back 6.59° through the zodiac.

Next

1992 Begins 30 December 1991 and runs 122 days.

Gap across 1991

0.9 years between the two — long enough for a whole calendar year to fall inside it with nothing to report.

Both dates are computed from the planet’s apparent motion, not taken from a table. A retrograde begins the moment its daily movement against the stars turns negative, and that moment is findable to the hour.